Duplex envelope



Oct. 17, 1933. w A, JENRICH 1,931,351

DUPLEX ENVELOPE Filed Dec. 26, 1930 2 Sheets-Sheet l INVENTORQ WILLIAMA. JENRICH ATTORNEY Oct. 17, 1933. w A JENRICH 1,931,351

DUPLEX ENVELOPE Filed Dec. 26, 1930 2 SheetS-Sheet 2 FIG.8

INVENTOR WILLIAM A. JENRICH ATTORNEY Patented Oct. 17, 1933 I 1Application December-.226, 193 1 3,' ig'sel'igl Nogs fliga'za singlepiece] ofjstock [and that is consequently iv in i mtnuraaure Ai u the' pJ'ect is to? provide a duplex fenvelope' comprisin a l r e and. .a sm 1b n nar m tll h la bein adapt d tofb ea ed when l f, 1 56:. f rtherObject is to provide an rivelopethat re.- quixes but ew .metha m ope aions. 'i its manufacture, that is efl'lcient in use, aridattractive inappearance.

With the foregoing an me? dbiect f v w .15 the inventionconsists' in;the "combination and arrangement, 01 'Da'rtsTtojbe hereinaiftef fullydescribed, pointed out in the' laims'ja'nd illustrated in theaccompanyingj drawing which form a part ofapplicationfm patent andinfwhich v. Fig. 1 is a plan view of the envelope'cut mucijlagedandready tomefnlded for use.

Fig. 2 is a viewof th'eh'v'elope partly folded, the smaller compartmentbeing ready for use. Fig. 3 is a view of the envelope completely foldedand ready to mail. I v

Fig. 4 is a vertical sectional view taken on the 1ine44ofFig.2." V .g

Fig. 5 is a similar view taken on the line 5-5 of Fig. 3, or of Fig. 10.

Fig. 6 is a cross-sectional view taken on the line 6-6 of Fig. 3, or ofFig.10. I

Fig. '7 is a view similar to Fig. 1 but of a slightly modified formofenvelope. I

Fig. 8 is a similar view of the envelope shown in Fig. 1, partly folded.Fig. 9 is a view of the envelope shown in Fig. 8, with one flap partlybroken away, after being further folded.

Fig. 10 is a view of the modified form of envelope complete, folded andready to be mailed.

Like reference characters denote corresponding parts throughout theseveral views.

The envelope is formed from a single blank tion or larger compartment 1which is slotted to form the flap 2 and scored along the edge 3 asdenoted by dotted lines. Integral with the larger compartment 1 is thestrip 4 which when folded along the lines 5 against the largercompartment or body 1 forms the smaller or first class mail compartment,said strip being formed with the flap 6 having the gummed portion '7,said strip proper being formed with the gummed portions 8, 9.

;when the strip 4 is folded against the -1 the flap 6is insertedthroughfthe slot formed by cutting thebody' flap 2 and thereafter"'saidcan 2 'is permanently *secu'redto" th reverseisidebf the flap 4, thegummedportions 8:, 9 ofsaid fiap being then sealed to thesaidbody l'and''the flap fifis now in position to be *seaiedagamst the body rafter thefirst class 'fmail has been; depositedinjthefreceptacle providedtherefor" and formed at 2'4 between' the strip-4 and bodyipor tion; 1,;After said n 6 is sealed shut it'fwlll benoted'that the compartmenvu isopen'at'its lower'en'djas clearly show'n -in Fig. 5;

The wa nq' t qn i i e j' 8 -7 4 -inclusive with i the te'gra i f oiiositeiy flaps 10f, 14, and withfthelatei al' f lapf-l p'the na iojbeig adapted-to be; folded="along f the dotted line 11" against the' body 1and against m dit i m e tm i.g le 'fl f being formed 'with the gummed{lateral tongue 12 adapted to 'be folded along the line I'S agaihst th"frontjfacewf the body 1'; or uponthe ide 35h ieof opposite to thatiagainst which" 's'aiidflap '10'is folded3'--" The flap 14 isnow'""folded*along'line"l-5 against the strip 4 and flap 10, said flap14 having a gummed edge 16 which is permanently sealed to said flap 10,and. a minor gummed flap 17 which is then folded along the line '18against the face side of the envelope body 1, slightly overlapping thelower end of the tongue 12', said minor flap 17 .being now sealed inpowith the tongue 13 and the flap 10 is provided along one edge with thegummed portion 12' and in forming this envelope the strip 4 and ofmaterial which includes the main body portongue 13' are folded along theline 5 at the sametime. The flap 10 is now folded down along the line 11upon the body portion 1 and tongue 13 and sealed to the latter along thegummed portion 12. The flap 14 is now folded along the line 15 to. restagainst the strip 4 and flaplO and sealed thereupon bymeans U of itsgummed portion 16.- The gummed minor flap 17 is now foldedupon the line18 against the face of the body 1 and sealed thereto as shown in Fig.10. If preferred theminor flap 1''! may be gummed upon its reverse sideto that shown in Figs. 7 and 8 and then folded along the line 18 againstthe flap 14'and then folded, together with flap 14, against the flap 10in substantially the same manner as the tongue 13' in Figs. 8 and 9,said gummed pori tions 17 and 16 then being sealed to said flap to--complete vthe compartments 23 and 24. In this event the front face ofthe completedenvelope will not disclose any flaps except the flap 6.

Referring now ,to all figures, the body 1 is formed with acut-out orwindow portion 21 which may becovered by a strip of glassine 'paper 22in a well known manner to expose the address upon a printed form letter;or like mat,- ter, which may be inserted in the smaller compartment. beomitted and the address placed directly upon the envelope. When theenvelope is occupied the ungummed flap 19 is folded along "the line 20and preferably tucked inside the envelope between the flaps 14, 10 andthe body 1. Withdrawal manually of this flap 19 permits ready flap, anarrow stripforrned laterally of said body. portion upon the sidethereof common to said tongue, and aflapfor said strip, said strip beingadapted to be folded back upon said body portion and said flap fordisposal in said body slot, said oppositely disposed flaps being,adapted to be folded inwardly upon said strip and body portion. andoverlapping each other,:. tongue being adapted to be folded against saidbody portion and said ungummed flap being then tucked in between saidoppositely disposed flaps and said bodyportion. i

to t

This window feature may, however,

2. A duplex envelope formed of a single piece of material including abody portion, said body portion being slotted transversely, oppositelydisposed flaps formed upon said body portion,

a -minor flap formed laterally of one of said last named flaps, anungummed flap formed laterally of said body portion, a tongue. formedlaterallyl of said body rportioni upon the side, opposite to saidungumined flap, a strip formed laterally of said body portion upon theside.com-v monto said tongue, said strip being adapted to befolded backupon said body portion, and a flap for said strip, said flap beingadapted for disposalin said body; slot, said oppositely dis- 1 posedflaps being adapted to be folded inwardly' uponesaid strip and bodyportion and overlapping eachother, said tongue being adapted to befolded upon one side of said body portion,

said minor flap being adapted to be folded upon the same side ,of saidbody portion, saidungummed flap being then tucked in'between saidoppositelydisposed flaps and said body portion; 3. A duplex envelopeformed of asin'glei piece of materialincluding a-body portion, said bodyportion being slotted tran'sversely,V oppositely disposed flapsformed'uponlsaid body portion, a tongue formed laterally, ofzone of saidflaps, a minor flap fo'rmed laterally-bf theothe'rflap, an ungummedfiapformed upon said'body' portion, a stripforme'd laterally ofsaidlbodyp'ortion, and a flap for said strip, said strip being adaptedto be folded upon said bodyportion and said flap for disposal in'sa'idfbody slot, said oppositely disposed flaps being adapted .to befoldedfin'w'ardly up'onsaid strip and'j body portion and overlappingeach other, said flap tongue and minor "flap" being adapted to be iiofolded against theffac e' of, said body portion,

said ungummed' flap being then tucked in be tween said oppositelydisposed flaps and said bodyportion."

JENRICH.

